Perseus molecular cloud

The Perseus molecular cloud (Per MCld) is a nearby (~1000 ly) giant molecular cloud in the constellation of Perseus and contains over 10,000 solar masses of gas and dust covering an area of 6 by 2 degrees. Unlike the Orion molecular cloud it is almost invisible apart from two clusters, IC 348 and NGC 1333, where low-mass stars are formed. It is very bright at mid and far-infrared wavelengths and in the submillimeter originating in dust heated by the newly formed low-mass stars.

Perseus Molecular Cloud
Molecular cloud
Giant molecular cloud
Map of the Perseus molecular cloud
Observation data: J2000.0[1] epoch
Right ascension03h 35.0m [1]
Declination+31° 13′[1]
Distance956–1047 ly   (293–321 [2] pc)
Apparent dimensions (V)6°×2°
DesignationsPerseus Molecular Cloud, Perseus Cloud, Per MCld, Per Mol Cloud, Perseus Complex, PMC [1]
See also: Lists of nebulae

It shows a curious ring structure in maps made by the IRAS and MSX satellites and the Spitzer Space Telescope and has been detected by the COSMOSOMAS at microwave frequencies as a source of anomalous "spinning dust" emission.

Perseus Molecular Cloud
Full resolution
Spitzer Space Telescope (19 December 2019)


  1. ^ a b c d "NAME Perseus Cloud". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2014-03-14.
  2. ^ Ortiz-León, Gisela N.; Loinard, Laurent; Dzib, Sergio A.; Galli, Phillip A. B.; Kounkel, Marina; Mioduszewski, Amy J.; Rodríguez, Luis F.; Torres, Rosa M.; Hartmann, Lee; Boden, Andrew F.; Evans, Neal J., II; Briceño, Cesar; Tobin, John J. (2018). "The Gould's Belt Distances Survey (GOBELINS). V. Distances and Kinematics of the Perseus Molecular Cloud". The Astrophysical Journal. 865 (1): 73. arXiv:1808.03499. Bibcode:2018ApJ...865...73O. doi:10.3847/1538-4357/aada49.